| 2005 | 2010 | 2011 | 2012 | 2013 | 2014 | |
|---|---|---|---|---|---|---|
| CO2 | 17 631.4 | 18 113.5 | 18 124.3 | 17 742.2 | 17 578.0 | 18 218.4 |
| CO | 212.1 | 104.6 | 90.7 | 79.0 | 70.9 | 68.1 |
| NO2 | 94.2 | 54.6 | 50.1 | 45.2 | 42.5 | 42.1 |
| N2O | 2.4 | 2.3 | 2.3 | 2.2 | 2.1 | 2.2 |
| VOC | <42.1 | 19.3 | 16.7 | 14.6 | 13.2 | 12.8 |
| CH4 | 1.6 | 1.1 | 1.0 | 0.9 | 0.9 | 0.9 |
| SO2 | 0.6 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 |
| particulates | 6.1 | 3.3 | 2.9 | 2.6 | 2.4 | 2.3 |
| Pb | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Note: Data in the table are calculated on the basis of methodology developed in the framework of a research project for MD
Source: MD